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Helical Thread Inserts
Giant 8 Pitch
Helical Insert: 3 1/2-8, 4.375" (1.25xD) Length, Free Running (1 pc)
Helical Thread Insert: 3 1/2-8, 4.375" (1.25xD) Length, Free Running, Pkg. of 1
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Internal Thread Size:
4.375" (1.25x diameter)
18-8 (304) Stainless Steel
Quickly and easily repair stripped or damaged threads, or create stronger original threads in die castings or plastics with our Helical Screw Thread Inserts. Coil tension securely holds the insert in place without undue tension on the surrounding material. The inserts are vibration and impact resistant so won't strip or seize. Made from corrosion resistant stainless steel, they offer a wide temperature tolerance.
Helical Inserts are often known by the brand names Helicoil or Recoil Screw Thread Inserts. Our Precision Thread Helical Inserts are interchangeable with other brands of inserts and tooling. Rest assured you'll enjoy an easy and accurate transition to our Precision Thread Helical Inserts from Chrislynn.
Available Modifications to our Helical Inserts...
- Inconel X750, Phosphor-Bronze, Nitronic 60, 316 Stainless Steel
- Dry Film, Cadmium, Silver Plating
Please call for quote & lead time for any modifications
Our Precision Thread Helical Inserts meet or exceed most applicable specifications, including:
MS 122076 series, 124651 series, 21208, 21209, 33537, Mil-1-8846, and Mil-F-5577
Not the correct size? Looking for a different length?
For a comprehensive list of our available sizes and lengths, please visit our
Helical Thread Insert
SAME DAY SHIPPING IF ORDERED BY 3PM CST.
Purchased for Resale to Dow Chemical.
Helical Thread Repair Kit: 3 1/2-8, 4.375" (1.25xD) Length
Helical Insert: 3 1/2-8, 4.375" (1.25xD) Length, Locking (1 pc)
3 1/2-8 Helical Installation & Tang Break-Off Tool
3 1/2-8 HSS STI Plug Tap
TERMS & CONDITIONS
W328S8900 S Oak Tree Dr
P.O. Box 504
Mukwonago, WI 53149 US